body,html,i,em,b,strong,h1,h2,h3,h4,h5,h6,li,dl,dt,dd,a,ul,ol,p,th,td,form,fieldset,legend,textarea,select{
    margin: 0;
    padding: 0;
}
body,html{
    font-size: 12px;
    font-family: "微软雅黑",Arial;
}
img{
    vertical-align: middle;
    margin: 0;
    padding:0;
}
li{
    list-style: none;
}
i,em{
    font-style: normal;
}
b,strong{
    font-weight: normal;
}
a{
    text-decoration: none;
}
input{
    outline: none;
}
.clearfix{
    *zoom: 1;
}
.clearfix::after{
    content: "";
    clear: both;
    display: block;
    height: 0;
    overflow: hidden;
    visibility: hidden;
}
fieldset{
    border: 0;
}